On Fri, Oct 27, 2017 at 10:33:29PM +0800, icen...@aosc.io wrote:
> 在 2017-10-16 20:09，Maxime Ripard 写道：
> > On Mon, Oct 16, 2017 at 05:41:10PM +0800, icen...@aosc.io wrote:
> > > 在 2017-10-16 17:11，Maxime Ripard 写道：
> > > > On Sat, Oct 14, 2017 at 08:29:24PM +0800, Icenowy Zheng wrote:
> > > > >
在 2017-10-16 20:09，Maxime Ripard 写道：
On Mon, Oct 16, 2017 at 05:41:10PM +0800, icen...@aosc.io wrote:
在 2017-10-16 17:11，Maxime Ripard 写道：
> On Sat, Oct 14, 2017 at 08:29:24PM +0800, Icenowy Zheng wrote:
> > A64's Display Engine 2.0 needs a section of SRAM (SRAM C) to be
> > claimed.
>
> Why?
On Mon, Oct 16, 2017 at 05:41:10PM +0800, icen...@aosc.io wrote:
> 在 2017-10-16 17:11，Maxime Ripard 写道：
> > On Sat, Oct 14, 2017 at 08:29:24PM +0800, Icenowy Zheng wrote:
> > > A64's Display Engine 2.0 needs a section of SRAM (SRAM C) to be
> > > claimed.
> >
> > Why?
>
> Allwinner didn't
在 2017-10-16 17:11，Maxime Ripard 写道：
On Sat, Oct 14, 2017 at 08:29:24PM +0800, Icenowy Zheng wrote:
A64's Display Engine 2.0 needs a section of SRAM (SRAM C) to be
claimed.
Why?
Allwinner didn't document this, but if the SRAM is not claimed, the
DE2 MMIO zone is totally not accessible.
It
On Sat, Oct 14, 2017 at 08:29:24PM +0800, Icenowy Zheng wrote:
> A64's Display Engine 2.0 needs a section of SRAM (SRAM C) to be claimed.
Why?
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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